#! /bin/bash

if [ -e /proc/modules ] ; then
	modprobe pg3 >& /dev/null
	modprobe pktgen >& /dev/null
fi

for PGDEV in /proc/net/pg /proc/net/pktgen/pg0 / ; do
	[ -e ${PGDEV} ] && break
done
if [ "${PGDEV}" = "/" ] ; then
	echo "Could not locate pg in /proc/net" 1>&2
	exit 1
fi

function pgset() {
    local result

    echo $1 > ${PGDEV}

    result=`cat ${PGDEV} | fgrep "Result: OK:"`
    if [ "$result" = "" ]; then
         cat ${PGDEV} | fgrep Result:
    fi
}

function pg() {
    echo inject > ${PGDEV}
    cat ${PGDEV}
}

pgset "odev eth0"
pgset "dst 0.0.0.0"

